Cleanup: Remove unneeded forward declarations in base, dbug, gpu, ipc, jingle, and media.

jingle/notifier/communicator/xmpp_connection_generator.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef JINGLE_NOTIFIER_COMMUNICATOR_XMPP_CONNECTION_GENERATOR_H_
 #define JINGLE_NOTIFIER_COMMUNICATOR_XMPP_CONNECTION_GENERATOR_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "net/base/address_list.h"
 #include "net/base/completion_callback.h"
 #include "net/base/host_resolver.h"
 #include "net/base/net_log.h"
 #include "net/base/single_request_host_resolver.h"
 #include "jingle/notifier/base/server_information.h"
 
-namespace talk_base {
-struct ProxyInfo;
-class SignalThread;
-}
-
 namespace notifier {
 
 class ConnectionOptions;
 class ConnectionSettings;
 class ConnectionSettingsList;
 
 // Resolves dns names and iterates through the various ip address and transport
 // combinations.
 class XmppConnectionGenerator {
  public:
@@ skipping 49 matching lines @@
   int first_dns_error_;
   bool should_resolve_dns_;
   const ConnectionOptions* options_;
 
   DISALLOW_COPY_AND_ASSIGN(XmppConnectionGenerator);
 };
 
 }  // namespace notifier
 
 #endif  // JINGLE_NOTIFIER_COMMUNICATOR_XMPP_CONNECTION_GENERATOR_H_